Big differences Turk......................
The difference between $150 and $850 fares to the same destination is that one bought a non-refundable ticket 30-60 days out to take the family to Disneyland, and the other just found out he had to be in LA for business tomorrow. The airlines held those seats open on purpose because they know there is a demand and value attached for last-minute business travelers.
Unlike the car, if the seat is empty at departure that product is forever spoiled, so the economy of risk is involved.
The other big difference is that $700 is a lot less than $70,000
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